The São Paulo Potential and the 3He Breakup Reaction at 130 MeV on 93Nb and 197Au

Chimanski, E. V.; Souza, L. A.; Carlson, B. V.

doi:10.1007/s13538-020-00819-x

The São Paulo Potential and the ₃He Breakup Reaction at 130 MeV on ₉₃Nb and ₁₉₇Au

Journal Article · Mon Jan 18 00:00:00 EST 2021 · Brazilian Journal of Physics

DOI:https://doi.org/10.1007/s13538-020-00819-x· OSTI ID:1772301

^[1]; Souza, L. A. ^[2]; Carlson, B. V. ^[2]

Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Inst. Tecnologico de Aeronautica, Sao Jose (Brazil)

Nuclear reactions induced by weakly bound nuclei often result in the emission of light particles as products of the projectile breakup. The incident particle is expected to fragment before reaching the interior of the target nuclei, a characteristic that tends to favor forward angular emission. Although the first models developed for such reactions were proposed many decades ago by Udagawa and Tamura, Ichimura, Austern, Vincent, and Kasano, and Hussein and McVoy, to this date most of the attention has been dedicated to the breakup of the deuteron and other very weakly bound systems, while more strongly bound projectiles have not been fully explored. Here, we describe the production of protons and deuterons from the breakup of 3He. The breakup of ₃He on two heavy targets, ₉₃Nb and ₁₉₇Au, is analyzed in this study. However, the incoming energy involved is much larger than that of the standard phenomenological optical potentials available in the literature for the 3He entrance channel. We have overcome this difficulty by using the São Paulo potential and adjusting the nuclear diffusivity. The deuteron inclusive spectra were calculated at several angles and compared well with the experimental data. Theoretical proton emission predictions are also given for future reference, since no inclusive measurements were performed for the targets under study. Finally, one of our goals is to verify the description of deuteron emission from fast projectiles, for which many partial waves contribute to the scattering process.

View Accepted Manuscript (DOE)

Research Organization:: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)

Sponsoring Organization:: Sao Paulo Research Foundation (FAPESP); USDOE National Nuclear Security Administration (NNSA)

Grant/Contract Number:: AC52-07NA27344

OSTI ID:: 1772301

Alternate ID(s):: OSTI ID: 23110886

Report Number(s):: LLNL-JRNL--815015; 1023626

Journal Information:: Brazilian Journal of Physics, Journal Name: Brazilian Journal of Physics Journal Issue: 2 Vol. 51; ISSN 0103-9733

Publisher:: SpringerCopyright Statement

Country of Publication:: United States

Language:: English

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